公开(公告)号：CA1175578A

公开(公告)日：1984-10-02

申请号：CA411074

申请日：1982-09-09

Applicant: IBM

Inventor： DANIELS PAUL R ,  MOORE DANIEL J ,  NGUYEN HA H

IPC: G06F3/12 ,  G06F15/20

Abstract: AT9-?1-001 WORD PROCESSING SYSTEM HAVING A FORMATTING BIDIRECTIONAL PRINTER A word processing system is provided having a bidirectional printer with formatting capability. The system includes a word processor having means for outputting a stream of sequential data readable in only one direction. The data comprises blocks of character data representative of the characters to be printed interspersed with blocks of control data representative of the format in which the characters are to be printed; each block of control data has an immediately preceding control block identifier. The bidirectional printer includes means for receiving the stream of sequential data, means for scanning the stream of data and means for inserting a control block identifier at the end of each control block which identifier corresponds to the identifier preceding the control block, whereby the stream of sequential data is made readable in both the forward and reverse directions within the printer.

公开(公告)号：CA2016397C

公开(公告)日：1994-07-05

申请号：CA2016397

申请日：1990-05-09

Applicant: IBM

Inventor： GREEN EMILY A ,  MALCOLM JERRY W ,  NGUYEN HA H ,  ROOSKEN CYNTHIA A

IPC: G06F11/32 ,  G06F3/023 ,  G06F3/048 ,  G06F3/14

Abstract: METHODS OF MONITORING THE STATUS OF AN APPLICATION PROGRAM An application or terminal emulation program, which is being executed on an information processing system, is represented by the display of a first icon on a display device. If during the execution of the application or terminal emulation program, a virtual display buffer associated with the application program, is updated, a second icon is displayed on the display device to indicate to a user of the system that a change in the status of the program has occurred.